why does my Tesla Model S Original (2012-2020) have a strange smell when I drive

Tesla Model S Plaid/Refresh (2021-present)

Error Codes

1-2 hours

Time

medium

Difficulty

medium

Severity

3 min read

536 words

Problem Statement

Learn how to diagnose and fix strange smells in Tesla Model S (2012-2020). Step-by-step guide with symptoms, diagnostic steps, and repair instructions.

Affected Component

HVAC

Estimated Time

1-2 hours

⚠️ Safety Warnings

Important safety information - read before proceeding

•Ensure the vehicle is powered off and cooled down before working on electrical systems.

Symptoms

•Unpleasant odor inside the cabin while driving
•Possible burning smell resembling burnt rubber or plastic
•Increased humidity or dampness in the vehicle
•Occasional musty or moldy scent
•No unusual dashboard warning lights illuminated

Diagnostic Steps

1
Inspect the cabin air filter for dirt or blockage.
2
Check for any visible signs of leaks in the HVAC system.
3
Inspect the battery compartment for overheating or burnt components.
4
Examine the undercarriage for any signs of oil or fluid leaks.
5
Conduct a visual inspection of the interior for any spilled substances or food debris.
6
Test the operation of the HVAC system, including the recirculation function.

Solution

💡 Expert Tip

For complex repairs like this, consider taking photos at each step. This helps if you need to reverse a step or consult with a mechanic. Also, keep all removed parts organized - you may need to reference them during reassembly.

Verification

After completing the repair, verify that the issue has been resolved:

✓Test the affected component to ensure it functions correctly
✓Check for any error codes or warning lights
✓Monitor the vehicle for a few days to ensure the issue does not recur

Prevention Tips

To prevent this issue from occurring again:

•Follow the manufacturer's recommended maintenance schedule
•Address warning signs early before they develop into major issues
•Use quality parts and fluids recommended for your vehicle
•Keep detailed records of all repairs and maintenance

Tools & Equipment Required

•Screwdriver
•Inspection mirror
•Flashlight

Parts Required

•Cabin air filter
•Seals or gaskets (if leaks are present)

Related Faults

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Diagnostic Steps

1
Inspect the cabin air filter for dirt or blockage.
2
Check for any visible signs of leaks in the HVAC system.
3
Inspect the battery compartment for overheating or burnt components.
4
Examine the undercarriage for any signs of oil or fluid leaks.
5
Conduct a visual inspection of the interior for any spilled substances or food debris.
6
Test the operation of the HVAC system, including the recirculation function.

Solution

1. Preparation

Gather necessary tools and parts.
Ensure the vehicle is parked in a well-ventilated area.
Disconnect the vehicle from the charging source if applicable.

2. Check and Replace Cabin Air Filter

Tools Required: Screwdriver, replacement cabin air filter.
Open the glove compartment and remove any contents.
Locate the cabin air filter access cover, usually at the back of the glove compartment.
Remove the access cover by unfastening screws or clips.
Pull out the old cabin air filter and inspect it for dirt and debris.
Install the new cabin air filter, ensuring it is oriented correctly.
Reattach the access cover and secure it with screws or clips.

3. Inspect HVAC System

Tools Required: None.
Turn on the HVAC system and switch between different modes (vent, heat, and A/C).
Listen for abnormal noises or smells during operation.
If any unusual odor persists, clean the evaporator core if accessible, or consult a professional.

4. Investigate Battery Compartment

Tools Required: None.
Open the rear hatch and remove the service panel covering the battery pack.
Check for any signs of overheating, burnt connectors, or insulation.
If any issues are found, contact Tesla service for a professional inspection.

5. Examine for Leaks

Tools Required: Inspection mirror, flashlight.
Crawl under the vehicle and check for any signs of fluid leaks.
Inspect engine and transmission areas for oil, coolant, or other fluid leaks.
Address any leaks by replacing seals or gaskets as necessary.